<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ page contentType="text/html;charset=UTF-8" language="java"%>
<%@ page import="java.util.List"%>
<%@ page import="javax.jdo.PersistenceManager"%>
<%@ page import="com.google.appengine.api.users.User"%>
<%@ page import="com.google.appengine.api.users.UserService"%>
<%@ page import="com.google.appengine.api.users.UserServiceFactory"%>

<html>
<head>
	<link type="text/css" rel="stylesheet" href="/stylesheets/main.css" />
</head>

<body>

<%
	UserService userService = UserServiceFactory.getUserService();
	User user = userService.getCurrentUser();
	if (user != null) {
%>
<p>Hello, <%=user.getNickname()%>! (You can <a
	href="<%=userService.createLogoutURL(request.getRequestURI())%>">sign
out</a>.)</p>
<%
	} else {
%>
<p>Hello! <a
	href="<%=userService.createLoginURL(request.getRequestURI())%>">Sign
in</a> to include your name with greetings you post.</p>
<%
	}
%>
<%
	PersistenceManager pm = PMF.get().getPersistenceManager();
	String query = "select from " + Greeting.class.getName() + " order by date desc range 0,5";
	List<Greeting> greetings = (List<Greeting>) pm.newQuery(query).execute();
	if (greetings.isEmpty()) {
%>
<p>The guestbook has no messages.</p>
<%
	} else {
		for (Greeting g : greetings) {
			if (g.getAuthor() == null) {
%>
<p>An anonymous person wrote:</p>
<%
			} else {
%>
<p><b><%=g.getAuthor().getNickname()%></b> wrote:</p>
<%
			}
%>
<blockquote><%=g.getContent()%></blockquote>
<%
		}
	}
	pm.close();
%>
<form action="/sign" method="post">
<div><textarea name="content" rows="3" cols="60"></textarea></div>
<div><input type="submit" value="Post Greeting" /></div>
</form>

</body>
</html>
